Hardware Spec Index

Caldera FN-3691 Prime 140mm PWM ARGB Case Fan

Case Fans · Caldera · SKU FN3691-PRIME · Released 2025 · Updated 2026-10-20

Key facts

Benchmark index1,176 (Case Fans scale)
Category rank#18,130
Street price$39
Power3 W
Performance per dollar30.15
Released2025

Specifications

BrandCaldera
ModelCaldera FN-3691 Prime
Size140 × 140 × 25 mm
Speed300–2,400 RPM (PWM)
Airflow115.2 CFM
Static pressure2.28 mmH₂O
Noise23 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3691 Prime 140mm PWM ARGB Case Fan”, https://vextor7.com/item/35456851 (accessed 2026-10-20).